The GUK lists the holdings of the Göttingen State and University Library (SUB Göttingen) and departmental libraries of the University of Göttingen. As a rule, book or journal articles are not included.

The GBV Union Catalogue (GVK) comprises the holdings of libraries in seven German federal states as well as of the Staatsbibliothek zu Berlin. As a rule, all titles listed can be ordered via inter-library loan within Germany.

The GVK-PLUS catalogue comprises all titles listed in the GBV Union Catalogue (GVK) and in the article database Online Contents (OLC). As a rule, all titles listed in the GVK-PLUS catalogue can be ordered via inter-library loan within Germany. Please note that you are able to use the catalogue within the net of Göttingen University only.